This MK484 AM radio circuit provides a complete solution including : RF amplifier, Detection and AGC circuit (automatic gain control ), which requires only a few external components to give a high quality AM Tuner. The circuit has an input impedance of 4Mohms and operates over a frequency range of 150KHz to 3MHz. The IC will run with DC supply bet
ween 1. 1V and 1. 8V typical 1. 4V and a current drain of 0. 3mA makes it suitable for battery operation.